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Odour concentration is measured sensorially, thus needing a human panel, whereas the measurement of odorous compounds is typically based on physical and chemical analysis. Some systems such as electronic noses try to correlate both approaches in order to measure odour instrumentally, which would allow monitoring odour continuously. In the domain of instrumental odour monitoring, e-noses are the main...
Whilst there are many attributes that need to be considered for cloud service selection, performance remains one of the most crucial aspects. Thus, we argue for a transparent cloud provider comparison framework in this study. We initiate the development of TCloud: a transparent framework for public cloud service comparison. Our framework helps prospective cloud users to decipher public cloud benchmarking...
Tremendous interest prevails in developing a convenient and effective wearable medical device for evaluating sleep at home. The current study presents the clinical validation of VitalPatch®, a wireless adhesive patch sensor for screening of sleep architecture compared to the gold standard polysomnograph (PSG). A group of 45 volunteers were attached to a standard 22-channel PSG and a VitalPatch sensor...
Increasing hospital re-admission rates due to Hospital Acquired Infections (HAIs) are a concern at many healthcare facilities. To prevent the spread of HAIs, caregivers should comply with hand hygiene guidelines, which require reliable and timely hand hygiene compliance monitoring systems. The current standard practice of monitoring compliance involves the direct observation of caregivers' hand cleaning...
Color characteristics of computer monitors and similar display devices can significantly alter the way an image is perceived by the human eye. Modern cameras and software applications are able to create vibrant scenes and retain their original colorfulness through an embedded ICC[1] profile. Gamut differences between input and output mediums require color management techniques in order to preserve...
Cloud Security is still considered one of the main factors inhibiting the diffusion of the Cloud Computing paradigm. Potential Cloud Service Customers (CSCs) do not trust delegating every kind of resources and data to external Cloud Service Providers (CSPs). The problem grows in complexity due to the increasing adoption of complex supply chains: CSPs that offer Sofware-as-a-Service (SaaS) cloud services...
The extensive use of cloud services by both individual users and organizations induces several security risks. The risk perception is higher when Cloud Service Providers (CSPs) do not clearly state their security policies and/or when such policies do not directly match user-defined requirements. Security-oriented Service Level Agreements (Security SLAs) represent a fundamental means to encourage the...
The quality of Cloud services is a key determinant of the overall service level a provider offers to its customers. Service Level Agreements (SLAs) are crucial for Cloud customers to ensure that promised levels of services are met, and an important sales instrument and a differentiating factor for providers. Cloud providers offer services at different levels of abstraction, from infrastructure to...
This work presents the design, implementation, and evaluation of a learning platform that addresses two main objectives: first it provides and on-line quiz tool for students which can be used as a complementary learning approach to the classroom courses. Secondly, this tool performs a detailed analysis of learners use, considering not only the number of mistakes students have made but also the student...
Mild Cognitive Impairment (MCI) results in a noticeable decrease in cognitive abilities but does not interfere with regular daily functions. Some patients with MCI may be able to return to age-appropriate cognitive abilities, but some will progress to dementia. Clinical interviews, tests and measurements are used to identify and monitor cognitive decline. Timely detection of cognitive decline provides...
End-to-end latency of serving jobs in distributed and shared environments, such as a Cloud, is an important metric for jobs' owners and infrastructure providers. Yet it is notoriously challenging to model precisely, since it is affected by a large collection of unrelated moving pieces, from the software design to the job schedulers strategies. In this work we present a novel approach to modeling latency,...
Industrial networks represent an important business for automation systems manufacturers that offer proprietary solutions and claim for the payment of license fees. However, automation can be achieved even by exploiting standard protocols in order to avoid or limit the use of proprietary solutions. The considered case study, related to the innovation of an oil refinery, illustrates a viable approach...
Understanding the behavior of an operations process and capturing it as an abstract process model has been shown to improve dependability significantly [1]. In particular, process context can be used for error detection, diagnosis, and even automated recovery. Creating the process model is an essential step in determining process context and, consequently, improving dependability. This paper describes...
Despite the undisputed advantages of cloud computing, customers-in particular, small and medium enterprises (SMEs)-still need meaningful understanding of the security and risk-management changes that the cloud entails so they can assess whether this new computing paradigm meets their security requirements. This article presents a fresh view on this problem by surveying and analyzing, from the standardization...
Respiration rate (RR) is one of the important vital signs used for clinical monitoring of neonates in intensive care units. Due to the fragile skin of the neonates, it is preferable to have monitoring systems with minimal contact with the neonate. Recently, several methods have been proposed for contact-free monitoring of vital signs using a video camera. Detection of the chest-and-abdomen region...
This paper reports on a comprehensive, fully automated resource use monitoring package, TACC Stats, which enables both consultants, users and other stakeholders in an HPC system to systematically and actively identify jobs/applications that could benefit from expert support and to aid in the diagnosis of software and hardware issues. TACC Stats continuously collects and analyzes resource usage data...
Chemical processes are being more heavily instrumented leading to larger and larger number of variables to monitor. Developing models for process monitoring using this colossal amount of data in a high dimensional space of process variables is a difficult task. In the recent times, immune system inspired Negative Selection Algorithm (NSA) has been gaining much attention for fault detection. Generally,...
Mapping an IP address to the Autonomous System announcing it is a key feature in network monitoring, and - as a consequence - in network management and research. An informed choice of the tool to use and of the database to query, is of extreme importance for the consistence of the obtained results. In this paper, we evaluate the reliability of the whois tool and the consistence of its results while...
In spite of the benefits that could flow from its adoption, cloud computing brings new challenges associated with potential lack of transparency, trust, and loss of controls. With a growing number of cloud service providers, potential customers will require methods for selecting trustworthy and appropriate providers. We discuss existing tools, methods and frameworks that promote the adoption of cloud...
DVB-T2 TV is at the implementation stage in Ukraine. Country net includes transmitters in 166 cities. The role of a radiomonitoring service is to ensure efficient use of radio-frequency spectrum particularly by measurements of the emission parameters including occupied bandwidth. It is necessary to find the spectrum level of X dB, which is lower than the predetermined 0 dB reference level and corresponds...
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